I'm glad you posted this. I had a really bad respiratory reaction to a product w/ Quarternium-15. Hmm, I haven't checked the ingredients, but a lot of ppl like Kinky-Curly Custard (??)- I think that what it's called. I think that brand usually has decent ingredients (check them on CurlMart). There's also a product w/ supposedly good hold in the Shea Moisture line (Iforget its name though). I'm not sure about 3a's, but I know quite a few 3b's like that line. From what I've seen, their ingredients are GREAT! Hope this helps. And as for the contact dermatitis, I found that aloe vera relieved the problem quickly. I also used an OTC corticosteroid.